The Binding of Isaac sells 700k copies, Edmund McMillen games compilation on the way

"Who would have thought a game about an abused child fighting off his mother with his tears could ever sell 700k copies in less than a year? Not me, that's for ****ing sure."

So begins an e-mail that Binding of Isaac co-creator Edmund McMillen sent us this morning. The popularity of the Wrath of the Lamb DLC has helped his weeping foetus roguelike rack up an incredible number of sales - but its launch, McMillen says, could have gone better.

"The limitations of Flash and the abundance of items caused an infinite number of variables that we simply couldn't effectively test, and it kinda sucked. We were able to squish all the major game breaking bugs in the 1st day of release, but it still left a bit of a bad taste in my mouth - so we decided to do yet another content update to the already bloated experience."

Wrath of the Lamb version 1.3 is out now and if you already own the DLC then the update doesn't cost anything. It adds new items, bosses, enemies, music and a new ending cutscene "that should shed some light on the game's story even more."